If you thought vampires were simply the stuff of myth and legend - and perhaps the odd teen horror film - think again.

Archaeologists in Bulgaria have unearthed two skeletons from the Middle Ages pierced through the chest with iron rods to keep them from turning into the undead.

They are the latest in a succession of finds across western and central Europe which shed new light on just how seriously people took the threat of vampires and how those beliefs transformed into the modern myth.